Brake arrangement



2 Sheets-Sheet 1 Nov. 1, 1938. w. c. r-lralncacocx` BRAKE ARRANGEMENT Filed March 11, 1937 .mw w swam www Nov. l, 1938. w. c. HEDGCOCK BRAKE ARRANGEMENT Filed March l1, 1957 2 Sheets-Sheet 2 SWW XUL

Patented Nov. 1, 1938 Parlazrrr "OFFICE BRAKE ARRANGEDIENT WilliamC. Hedgcock, Wilmette, Ill., assigner to American Steel Foundries, Chicago, Ill., a corporation of New Jersey Application March 11, 1937, Serial No. 130,366

27 Claims.

This invention pertains to a brake arrangement, and more particularly to clasp brakes for four-wheel freight car trucks.

It is an object of this invention to provide a clasp brake arrangement having a brake beam interchangeable with the standard truss type freight carbeam whereby a car equipped with this brake arrangement is acceptable in interchange service.

Another object isoto provide a brake arrangement for cars having restricted clearances such as between the slope sheets and trucks of hopper cars.

-' 'Still another object is to provide a brake arrangement wherein the weight of the parts is kept at a minimum, and the rigging is inexpensive to make and maintain and fulfills all requirements of manufacture and service.

Yet another object is to provide a brake ar- Y rangement wherein the beam is effectively balanced to prevent dragging of the top of the shoes on the wheel.

A different object is to provide a brake arrangement wherein no brake forces are disposed to act upon the bolster orload carrying member.

A still different object is to provide a brake arrangement preserving maximum clearances, the same being so arranged that no part of the brake is above the brake beam at the one end, such as the inside end, of the truck.

A yet diiierent object is to provide a truck and brake construction wherein the weight and number of parts carried by certain of the brake beams, such as the outer ones, is kept at a mini- -mum as the effect of vibration is very severe on the hanging and balancing means, particularly of the outside brake beams.

With these and variousrother objects in View, the invention may consist of certain novel features of construction and operation as will be more fully described and particularly pointed out in the Specification, drawings and claims appended hereto.

In the drawings, which illustrate an embodiment of the device and wherein like reference characters are used to designate like parts- Figure l is a side elevation of a four-wheel railway car truck having a brake arrangement embodying the invention applied thereto;

Figure 2 is a fragmentary tcp plan View of the car truck and brake arrangement illustrated in Figure 1;

Figure 3 is a fragmentary transverse sectional elevation taken substantially at the transverse center of thetruck;-

Inasmuch as both sides of the brake arrange- Vment are substantially the same, and the same operating means is used for each side of the truck, only one side of said brake arrangement is shown and described.

In the car truck illustrated, which is of the four-wheel type, the side frame I [I is substantially of truss construction including the tension member I2, compression member I4 connected adjacent the ends thereof and provided with spaced pedestals I6 for reception of journal means I8 of the spaced wheel and axle assemblies 20. Spaced columns 22 integrally connect the tension and compression members and pro-- vide the substantially centrally disposed window 24, said window being adapted to receive the ends of the transversely disposed load carrying member, which, in the construction illustrated, cornprises the bolster 2B. Said bolster is provided with the centrally disposed center bearing 28, suitable side bearings 30, and end spring seats 32 whereby the bolster may be supported on the spring seat 34 provided in the window through suitable resilient means (not shown) The spaced side frames are connected by the transversely extending spring plank 36 which, in the construction shown, is substantially channel-shaped Vprovided with the web portion 38 and the spaced upwardly extending iianges 40, the ends of said spring plank being seated on the spring seat 34 of said side frames in the Window 24.

The ends of the truck frame I0 are provided withinwardlyand downwardly sloping brackets 42 and 44 and at the inner end of said truck a brake beam 46 is provided with the brake head 48 having a suitable shoe 50 thereon adapted for braking cooperation with the outer periphery of the inner wheel. Brake beam 46 is supported by means of the brake hanger 52 pivoted to said brake beam at 54 and said hanger is pivoted adjacent the upper end thereof as at 56 to the bracket 42. The brake beam 46 is interchangeable with the standard truss type of beam and said brake beam is provided with the tension member 58 and the fulcrum 60,` said fulcrum having the elongated slot 62 and a clevis 64 pivoted to said fulcrum as at B6 and forming a safety means for the pull rod 68.

'Ihe pull rod 68 is pivoted as at 10 to the brake beam fulcrum 60 within the slot 62 and functions as a balancing means for the brake beam. The brake beam fulcrum is provided with bosses 12, one of which is supportingly engaged by the pull rod 68. The other end of the pull rod 68 is adjustably pivoted as at 14 to the lower end of the lever 16 which lever extends through the elongated slot 18 of the fulcrum 80, the upper end of said truck lever being pivotally connected as at 82 to operating means 84, such as brake cylinder means supported on the car body.

The fulcrum 80-is'disposed between the compression member of the brake beam 86 and the tension member 88-thereof, said brake beam Abeing provided with the brake head 90 having a suitableshoe 92 adapted for braking cooperation with the inner periphery'of the adjacent inner wheel. The brake beam is pivotally connected as at 94 to the brake hanger 96, said brake hanger being pivotally supported as at 98 to the bracket |00 provided on the side frame. As before the fulcrum 80 is provided with the bosses |02 which are supportingly Vengaged by the pull rod 68 and to the outer end of said fulcrum. A supporting hanger |04 is pivoted as at |06 to the fulcrum, said supporting hanger being provided witha `loop or clevis-like portion |08 extending below the pull rod 68 and forming safety means therefor.l The upper end of the supporting hangery |04 is pivotally connected as at to one end of a connection or strap ||2. The strap ||2 is provided with the jaw ||4, said jaw being pivoted as at` I I6 to the truck lever 16 andas at ||8 tothe truck lever |20. The truck lever |20 is pivotally connected adjacent the lower end thereof asat |22 to the fulcrum 80 and is pivotally' connected adjacent the upper end thereof, as at |24, to the pull rod |26.

The pull rod |26 is disposed above and extends acrossthe bolster, and a suitable guide bracket |28 thereon prevents sagging of the rigging.

`The opposite end of the pull rod is pivotally connected as at |30 to the upper end of the truck lever |32, said truck lever extending angularly downwardly 'andv is pivotally connected adjacent the lower end thereof as at |34 tothe fulcrum |36 of the brake beam |38. The brake beam |38 is likewise of truss shape including the tension member |40 and thev outer end ofthe brake beam has the brake head |42 with a suitable brake shoe' |44 adaptedV for braking cooperation vof the inner periphery of the adjacent wheel of the outer wheel .and axle assembly.

The brake beam |38 is pivotally connected asV at |46 to the brake hanger |48, said brake hanger being pivotally connected asat |50 to the inwardly extending bracket |52 on the side frame. Third point supports or balance hanger brackets |54 and |56 are mounted on the spring plank 36 and extend upwardly and outwardly toward the respective ends of, the truck. Balance hangers |58' and |60 are pivotally connected as at |62 and |64 tosaid brackets and are pivotally connected adjacent the lower ends thereof as at |06 and |66 to the brake beam fulcrums 80 and |36.

The truck lever |32 is pivotally connected intermediate the ends thereof as at |68 to the jawY |10 of the connecting means |12, said connecting means |12 being pivotally connected as at |14 to the-hanger |16, said hanger extending downwardly `andbeing pivotally-connected as at |86 to the fulcrum |36 and having thelooped or clevis portion |18 extending below and forming safety means for the' pull rod |80. 'I'he inner end of the pull rod |80 is pivotally and adjustably connected as at |82 to the lower end of the Asupportingly engaged by the pull rod |80.

`crums of the inside brake beams.

truck lever |84, said truck lever extending freely through the slot in the fulcrum |36 and being pivotally connected'as at |86 to the jaw |10. The upper end of the truck lever |84 is pivotally connected as at |88 to one end of the pull rod |90, the opposite end of said pull rod being pivotally and adjustably connected as at |82 to the bracket |94 secured on the center or draft sills |96 of the adjacent car body.

. The outer end of the pull rod |80 is pivotally connected as at |98 to the fulcrum 200, said fulcrum having an elongated slot therein and forming a connection between the compression member of the outer brake beam 202 and the tension member 204 thereof. The brake beam 202 carries the brake head 206 having a suitable shoe 208 thereon adapted for braking cooperation with the outer periphery of the adjacent wheel.

The brake beam 202 is pivotally connected as at 2|0 to the hanger 2|2, the upper end of the hanger being connected as at 2|4 to the bracket 44. 'I'he fulcrums. |36 and 200 have the respective bosses 2|5 and 2|6, one of each of which is A clevis 2|8 is pivotally connected as at 220 tothe fulcrum 200 and forms safety means for the pull rod |80. v

In the construction shown, paired levers |20 and 16, and |32 and |84 are so disposed that the levers 16 and V|84 pass freely through and operate in the slots in the adjacent fulcrums 80 and |36 and are positioned with the long arm of the levers at the bottom so that the jaW of the pull rods 68 and |80 will satisfactorily clear the ful- Truck levers |20 and |32 have the longarms 0f the levers at the top. The brake arrangement vthus formed prevents braking force from acting upon the truck bolster, as the bolster is merely a support for the rodV |26. truck no part Vof thebrake is above the brake beam so that ample` clearance is provided with this type of braking for slope sheets on hopper cars or other car body features.

In the operation of this form of brake, assuming ythe brake arrangement to be in released position, the upper end of the truck lever 16 is moved `toward the right, as viewed in Figures 1 and 2, :causing a clockwise movement of said truck lever about the pivot I6. This movement of the lever causes the pull rod 68to be moved toward the left as viewed in said figures, applying the brake shoe 50 to the outer periphery of theadjacent `inner wheel. Continuedmovement of the truck lever 16 causes bodily movement of .said lever toward the right as viewed in said figures, moving the truck lever |20 therewith. Movement of the truck lever |20 toward the right causes pivotal movement of the said' truck lever about the pivot |24, thus moving the brake shoe 92 toward the right for braking engagement with the inner periphery of the .adjacent inner wheel.

Continued movement causes the pull rod 26 to move the upper end of the lever |32 toward the right, causing said lever to have a pivotal movement about the pivot |68, causing the brake shoe |44 to have braking engagement with the inner periphery of the adjacent outer wheel. Continued movement of the brake arrangement causes bodily movement of the strap |12 causing the lever |84 to pivot about the point |88, thereupon moving the pull rod |80 toward the right as viewed in Figure 1, thus moving the brake shoe 208 to bring it into engagement with the outer periphery of the outer wheel. Release of Further, at the inside of the` the brake arrangement is of course effected in an opposite direction.

It is to be understood that I do not wish to be Vlimited by the exact embodiment of the device shown, which is merely by way of illustration and not limitation, as various and other forms of the device will of course be apparent to those skilled in the artl without departing from the spirit of the invention or the scope of the claims.

-What is claimed iszf1'. In` a brake arrangement, the combination of a truck frame having a load carrying member, a car body supported on said load carrying member, spaced wheel and axle assemblies supporting said truck frame, brake beams disposed at opposite sides of each `of said wheel and axle assemblies, connecting means between the opposite brake beams of one wheel and axle assembly, said means including a pull rod pivoted to one ofv said last named brake beams, a truck lever pivotedto said pull rod and to said car body and carried by said brake beam, a second truck lever pivoted to said rst truck lever and to the adjacent brake beam, connecting means between the opposite brake beams of another wheel and axle assembly, said second named means including a pull rod pivotally connected to one of said brake beams of said last named wheel and axle assembly, a truck lever pivoted to said last named pull rod and to brake operating means and carried by said brake beam of said last-named wheel and axle'assembly, a truck lever pivoted to said last named truck lever and to another brake beam of said last named wheel and axle assembly, and a' connection between said second and third named truck levers, said connection extending aboversaid load carrying member.

2. In a brake arrangement, the combination of a truck frame having a load carrying member, a car body supported on said load carrying member, spaced wheel and axle assemblies supporting said truck frame, brake beams disposed at opposite sides of each of 'said wheel and axle assemblies, connecting means between the opposite brake beams of one wheel and axle assembly, said means including a pull rod pivoted to one of said last named brake beams, a truck lever pivoted to said pull rod and to said car body, a second truck lever pivoted to said rst truck lever and to the adjacent brake beam, connecting means between said levers and said adjacent brake beam, connecting means between the opposite brake beams of another wheel and axle assembly, said second named means including a pull rod pivotally connected to one of said brake beams of said last named wheel and axle assembly, a truck lever pivoted to said last named pull rod and to brake operating means, a truck lever pivoted to said last named truck lever and to another brake beam ofsaid last named wheel and axle assembly, a connection between said last-named levers and said another brake beam of said last-named wheel and axle assembly, and a connection between said second and third named truck levers,

3. In a brake arrangement, the combination of a truck frame having a load carrying member, a car body supported on said load carrying member, spaced wheel and axle assemblies supporting y said truck frame, brake beams disposed at opposite sides of each of saidV wheel and axle assemblies, connecting means between the opposite brake beams of one Wheel and axle assembly, said means including a pull rod pivoted to one of said ilastnamed brake beams, a dead truck lever pivoted to said pull rod, a second truck lever pivoted to said first truck lever and to the adjacent brake beam, connecting means between said levers and said adjacent brake beam, connecting means between the opposite brake beams of another wheel and axle assembly, said second named means including a pull rod pivotally connected to one of said brake beams of said last named wheel and axle assembly, a truck lever pivoted to said last named pull rod and to brake operating means, a truck lever pivoted to said last named truck lever and to another brake beam of said last named wheel and axle assembly, a connection between said last-named levers and said another brake beam o said lastnamed wheel and axle assembly, a connection between said second. and third named truck levers, said connection extending above said load carrying member, and balance hangers secured to said truck frame and connected to said brake beams at the connections between said levers and said brake beams.

4. In a brake arrangement, the combination of a truck frame having a load carrying member, a car body supported on said load carrying member, spaced wheel and axle assemblies supporting said truck frame, brake beams disposed at opposite sides of each of said wheel and axle assemblies, connecting means between the opposite brake beams of one wheel and axle assembly, said means including a pull rod pivoted to one of said last named brake beams, a dead truck lever pivoted to said pull rod, means for carrying said lever on said brake beam, a second truck lever pivoted to said first truck lever and to the adjacent brake beam, said carrying means connecting said levers to said brake beam, connecting means between the opposite brake beams of another wheel and axle assembly, said second named means including a pull rod pivotally connected to one of said brake beams of said last named wheel and axle assembly, a truck lever pivoted to said last named pull rod and to brake operating means, means forcarrying said lastnamed lever on said one of said brake beams of said last-named wheel and axle assembly, said last-named carrying means connecting said lastnamed levers to said last-named brake beam, a truck lever pivoted to said last named truck lever and to another brake beam of said last named wheel and axle assembly, and a connection between said second and third named truck levers.

5. In a brake arrangement, the combination of a wheel, brake beams disposed on opposite sides of said wheel, each of said beams having a slotted fulcrum, brake shoes on each of said beams and disposed in the plane of said wheel, a pair of brake levers disposed on one side of said wheel and pivotally connected intermediate the ends thereof, one of said levers being a dead lever extending through theslot of the adjacent fulcrum, a pull rod connected through a single pivotal connection to vthe other fulcrum and pivotally connected to said dead lever below the fulcrum, the other of said levers being pivotally connected to said adjacent fulcrum, and operating means connected to said last named lever adjacent the upper end thereof.

6. In a brake arrangement, the combination of a wheel, brake beams disposed on opposite sides of said wheel, each of said beams having a slotted fulcrum, brake shoes on each of said beams and disposed in the plane of said wheel, a pair of brake levers disposed on one side of said wheel and pivotally connected intermediate the ends thereof, one of said levers being a dead lever extending through the slot of the adjacent fulcrum, a pull rod connected through a single pivotal connection to .the other fulcrum and pivotally connected to said dead lever below the fulcrum,

V,theother of said levers being pivotally connected to said adjacent fulcrum, each of said fulcrums being supportingly engagedby Ysaid pull rod,` and operating means connected to said last named lever adjacent the upper end thereof.

7. In a brake arrangement, the combination of a wheel, brake beams of truss construction disposed on opposite .sides of said wheel and havingV tensionmembers, brake shoes on each of said beams and disposed in the plane of said wheel, a brake lever carried by'one of said brake beams, a pull rod connected through a single pivotal connection to the `other of said brake beams in spaced relation to the tension; member thereof and pivotally connected to said brake lever and providing a support of said brake beam adjacent the tension member thereof, and operating means connected tosaid brake lever.

8. In a brake arrangement, the combination of a wheel, brake beams disposed on opposite sides of said wheel, each of said beams having a fulcrum, one of said fulcrums being slotteda pull rod connected to the other of said fulcrums by a single pivotal connection, said pull rod extending below the wheel center and below said slotted fulcrum, a brake lever extending through the slot of said slotted fulcrumsand being pivotally connected to said pull rod, and means connected to said slotted fulcrum and to said brake lever and serving as a safety support for said brake lever'.

9. In a brake arrangement, the combination of a wheel, inner andV outer brake beams disposed on opposite sides of said wheel, brake shoes provided onrsaid brake beams and disposed in the plane of said wheel and adapted fior braking cooperation with, said wheel, Va brake hanger pivotally supporting said outer brake beam, said outer brake beam being provided with a fulcrum, a pull rod connected to said fulcrum by a single pivotal connection. and supportingly engaging said fulcrum, a slotted fulcrum provided on said inner brake beam, a dead brake lever extending through said slot and being pivotally connected to said pull rod, a live brake lever pivotally connected to said slotted fulcrum in said slot, a con-V posed Von oppositeV sides' of said wheel, brake shoesprovided on said brake beams and disposed in the plane of said wheel and adapted for braking cooperation with said wheel, a brakehanger pivotally supporting said outer brake beam, said outer brake beam being provided with a fulcrum, a pull rod connected to said fulcrum by a single pivotal connection and supportingly engaging said fulcrum, a slotted fulcrum provided on said inner brake beam, a dead brake lever extending through saidl slot and being pivotally connected to said pull rod, a live brake lever vpivotally connected to said slotted fulcrum in said slot, a connection between said live and dead brake levers, operating means connected to the other end of said live brake lever, and connecting means between said slotted fulcrum and said connection.

1l. In'a brake arrangement, the combination of a Wheel, inner and outer brake beams disposed on opposite sides of said Wheel, brake shoes provided on said brake beams` and disposed in the plane of said wheel and adapted for braking cooperation with said wheel, a brake hanger pivotally supporting said outer brake beam, said outer brake beam being provided with a fulcrum, a pull rod connected to said fulcrum by a single pivotal connection and supportingly engaging said fulcrum, a slotted fulcrum provided on said inner brake beam, a dead brake lever extending through said slot and being pivotally connected to said pull rod, a live brake lever pivotally connected to said slotted fulcrum in said slot, a connection between said live and dead brake levers, operating means connected to the other end of said live brake lever, and connecting means between said slotted fulcrum and said connection, said connecting means having a portion underlying said pull rod.

l2. In a brake arrangement, the combination of a wheel, inner and outer brake beams disposed on opposite sides of said Wheel, brake shoes provided on said brake beams and disposed in' the plane of said wheel and adapted for braking cooperation with said wheel, a brake. hanger pivotally supporting said outer brake beam, said outer brake beam being provided with a fulcrum, a pull rod connected to said fulcrum by a single pivotal connection and supportingly engaging said fulcrum, a slotted fulcrum provided on said inner brake beam, a dead brake lever extending through said slot and being pivotally connected to said pull rod, a live brake lever pivotally connected to said slotted fulcrum in said slot, a connection between said live and dead brake levers,

operating means connected to the other end of 35 said live brake lever, connecting means between said slotted iulcrum and said connection, said connecting means having a portion underlying said pull rod, and a balance hanger pivotally supported adjacent said inner brake beam and pivotally connected to said slotted fulcrum.

13. In a brake arrangement, the combination of a wheel, a truck frame supported by said wheel, a brake beam disposed adjacent said wheel and provided with a brake shoe disposed in the plane of said wheel and adapted for braking cooperation therewith, said brake beam being provided with a slotted fulcrum, a dead truck lever extending through said slot and pivotally connected to means connected to said truck frame, a live truck lever pivotally connected to said fulcrum and to said dead truck lever, and operating means connected to said live truck lever.

14. In a brake arrangement, the combination of a wheel, a truck frame supported by said Wheel, a brake beam disposed adjacent .said wheel and provided with a brake shoe disposed in the plane of said wheel and adapted for braking cooperation therewith, said brake beam being provided with a slottedfulcrum, a dead truck lever extending through said slot and pivotally connected to means connected to said truck frame, a live truck lever pivotally connected to said fulcrum and to said dead truck lever, and operating means connected to said live truck lever, the connection between said live and dead truck levers being provided with means pivotally connected to said brake beam. l

l5. In a brake arrangement, the combination of awheel, a truck frame supported by said wheel, a brake bea/lmv disposed adjacent said wheel and provided with a brake Vshoe disposed in the plane of said wheel and adapted for braking cooperation therewith, said brake beam being provided with a. slotted fu1crum, a dead truck lever` extending through said slot and pivotally connected toY means connected to said truck frame, a live truck ylever pivotally connected to said fulcrum andto said dead truck lever, operating means connected to said live truck lever, the connection between said live and dead truck levers being provided with means pivotally connectedto said brake beam, and a balance hanger pivotally supported by said truck frame and pivotally connected to said fulcrum at the connection vbetween said fulcrum and said last named means.

16. In a brake arrangement, the combination of a wheel,V a truck frame supported by said wheel, a brake beam disposed on each side of said wheel and being provided with brake shoes disposed in the plane of the wheel and adapted for braking cooperation therewith, one of said brake beams being provided with a slotted fulcrum, a truck lever extending through said slot and operatively connected to the other of said brake beams, a truck lever connected to said fulcrum and to said first-named truck lever, operating means connected to one of said levers, and means connected to the other of said levers whereby said operating means is eiective in moving said brake shoes into and out of said braking cooperation with said wheel.

17. In a brake arrangement, the combination of a wheel, a truck frame supported by said wheel, a brake beam disposed on each side of said wheel and being provided with brake shoes disposed in the plane of the wheel and adapted for braking cooperation therewith, one of said brake beams being provided with a slotted fulcrum, a

truck lever extending through said slot and operatively connected to the other of said brake beams, a truck lever connected to said fulcrum yand to said first-named truck lever, operating means connected to one of said levers, means connected to the other of said levers whereby said. operating means is eiective in moving said brake shoes into and out of said braking cooperation with said wheel, and means providing a connection between" the connection for said levers and said brake beam provided with said slotted fulcrum.

18. In a brake arrangement, the combination of a wheel, a truck frame supported by said wheel, a brakel beam disposed on each side of said wheel and being provided with brake shoes disposed in the plane of the wheel and adapted for braking cooperation therewith, one of said brake beams being provided with a slotted fulcrum, a truck lever extending through said slot and operatively connected to the other of said brake beams, a truck lever connected to said fulcrum and to said first-named truck lever, operating means connected to one of said levers, means connected to the other of said levers whereby said operating means is effective in moving said brake shoes into and out of said braking cooperation with said wheel, means providing a connection between the connection for said levers and said brake beam provided with said slotted fulcrum, and a balance hanger provided on said truck frame and connected to said slotted fulcrum.

19. In a brake arrangement, the combination of a wheel, a truck frame supported by said wheel, a brake beam disposed adjacent said wheel and provided with a brake shoe disposed in the plane of said wheel and adapted for braking cooperation therewith, said brake beam being provided with a slotted fulcrum, a truck lever extending through said slot and connected to means connected to said truck frame, a truck lever pivotally connected to said fulcrum and to said rst-named lever, operating means connected to one of said truck levers, and means connected to the other of said levers whereby said operating means is effective in moving said brake shoe into and out of said braking cooperation with said wheel.

20. In a brake arrangement, thecombination of a wheel, a truck frame supported by said wheel, a brake beam disposed adjacent said wheel and provided with a brake shoe disposed in the plane of said wheel and adapted for braking cooperation therewith, said brake beam being provided with a slotted fulcrum, a truck lever extending through said slot and connected to means-,connected to said truck frame, a truck lever pivotally connected to said fulcrum and to said irst-named lever, operating means connected to one of said truck levers, means connected to the other of said levers whereby said operating means is effective in moving Vsaid brake shoe into and out of said braking cooperation with said wheel, and means providing a connection between the connection for said levers and said brake beam.

2l. In a brake arrangement, the combination of a wheel, a truck frame supported by said wheel, a brake beam disposed adjacent said wheel and provided with a brake shoe disposed in the plane of said wheel and adapted for braking cooperation therewith, said brake beam being provided with a slotted fulcrum, a truck lever extending through said slot and connected to means connected to said truck frame, a truck lever pivotally connected to said fulcrum and to said Erst-named lever, operating means connected to one of said truck levers, means connected to the other of said levers whereby said operating means is eiective in moving said brake shoe into and out of said braking cooperation with said Wheel, means providing a connection between the connection for said levers and said brake beam, and a balance hanger provided on said truck frame and connected to said fulcrum.

22. In a brake arrangement, the combination of a wheel, brake beams disposed on opposite sides of said wheel, brake shoes on each of said beams and disposed in the plane of said wheel, a brake levervcarried by one of said brake beams, a pull rod connected through a single pivotal connection to the other of said brake beams and pivotally connected to said brake lever, operating means connected to said brake lever, and means including a lever connected to said firstnamed brake beam and to said operating means whereby said iirst-named brake beam is operated.

23. In a brake arrangement, the combination of a wheel, a brake beam of truss construction having a tension member disposed on one side of said wheel and having a brake shoe supported thereon, a brake lever disposed on the opposite side of said wheel from said shoe, a pull rod pivoted to said brake beam in spaced relation to said tension member and supportingly engaging said brake beam adjacent said tension member, a pivotal connection between said pull rod and brake lever, and operating means connected to said lever.

24. In a brake arrangement, the combination of a wheel, a brake beam of truss construction having a tension member disposed on one side of said wheel and having a brake shoe supported thereon, a brakeV lever disposed n the opposite side of said wheel from4 said shoe; a pull rod pivotedto said brake beamfin spaced relation to said tension member and supportingly engaging said brake. beam adjacent said tension' member, la pivotal connection between said pull Vrod and brake lever, and operating means connected to said lever intermediatetheends thereof. 25. In a brake arrangement, the combination of a Wheel, a `brake beam of truss construction having a tension member disposed onv one sidey of said Wheel and having a brake shoe supported thereon, a dead brake lever disposed on the opposite side of said wheel from said shoe, a pull i rod pivotedV tosaid brake beam in spaced relaofsaid Wheel and having'a'brake shoe supported thereon, a dead brake lever disposed on the opposite side Vof said Wheel from said shoe, a pull rod pivoted to said brake beam in spaced relation to said tension member a-nd supportingly engaging said brake beam adjacent said tension member, a pivotal connection between said pull rodA and brake leven, and operating means connected to said lever intermediate the ends thereof.

27. In a brakek arrangement, the combination of a Wheel, brake beams of truss construction disposed'on opposite sidesv of lsaid Wheel and having tension members, brake shoes` on each of said beams and disposed inthe plane of said wheel, a brake lever carried by one of said. brake beams,4 a pull rod connected through a single pivotal connection to the other of said brake beams in spaced relation'to thetension member thereof and pivotally connected to said brake lever, and operating means connected to said brake lever.

1 WILLIAM C.. HEDGCOCK. 

